256406770714 has 16 divisors (see below), whose sum is σ = 395132025600. Its totient is φ = 124698323664.

The previous prime is 256406770687. The next prime is 256406770727. The reversal of 256406770714 is 417077604652.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324654 + ... + 786265.

It is an arithmetic number, because the mean of its divisors is an integer number (24695751600).

Almost surely, 2^256406770714 is an apocalyptic number.

256406770714 is a deficient number, since it is larger than the sum of its proper divisors (138725254886).

256406770714 is a wasteful number, since it uses less digits than its factorization.

256406770714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114077.

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 256406770714 in words is "two hundred fifty-six billion, four hundred six million, seven hundred seventy thousand, seven hundred fourteen".